Gasoline filter



Juny 24, 1923. 1.463.006

. M. E. E. DARDANI GASOLINE FILTER- F'iled Sept. '7,v 1921 j# y ATTORNEYS Patented lluly2l, 1923 narran stars MARTN E. E. DARDANI, OF FARFIELD, CONNECTICUT. i

GASOLINE FILTER.

Application tiled September 7, 1921.

To @ZZ whom t may concer/1t Be it known that I, MARTIN E. E. DAR- DANI, a citizen of the United States, residing at Fairfield, county of Fairfield, State of Connecticut, have invented an Improvement in Gasoline Filters, of which the following is a specification.

lThis invention relates to a filter, and particularly a filter to be attached to the end of a hose upon the pump at filling stations for automobiles, to prevent dirt and water being deposited in the automobile gasoline tank to clog up the pipes, carburetor, and so forth.

lt is an object of the invention to provide a iilter which will effectively prevent the entrance or" dirt and water to the tank and which will, at the same time, be simple in construction and easily assembled and disassembled for cleaning and repairing.

It is also an object of the invention to provide such a filter that will not retain any considerable amount of gasoline at the end of the lilling operation.

It is a still further object of the invention to provide la lter which will not collect dust and dirt when not in use which will later be deposited in the tank on the neXt filling operation.

, 1With the foregoing and other objects in View I have devised the improved lter illustrated in the accompanying drawings, in which,

Fig. 1 is a partial, central, vertical section of my improved filter.

Fig. 2 is a transverse section substantially on the line 2 2 of Fig. 1, and

Fig. 3 is a transverse section substantially on the line 3--3 of Fig. l.

`Reference number 10 represents the metal end on an ordinary filling hose connected with the pump used in connection with reservoirs at a filling station. This end is externally threaded for the attachment of the end cap 11 of my improved filter, a`

portion 12 of this cap being formed square or hexagonal 'for the application of a wrench when applying the filter to the hose. The body of the lter is composed of a metal tubular casing 13, closed at one end by the cap 11 and at the other end by a similar cap 14, shaped for the application of a wrench at 15. The two caps are formed with annular internally threaded flanges 16 and 17, respectively, with annular grooves 18 and 19 adapted to receive a suitable non- -face of the pipe 21. -this collar is provided with a V-shaped an- -nular rib 28, and the cap 14 on its inner sur- Serial No. 499,031.

corrosive gasket or packing 20upon which the ends of' the casing 13 seat to make a liquid tight connection when the two caps 11 and 14 are screwed onto the ends of this casing, the ends of the casing being externally threaded to receive the ends of these The inner end 22 of the pipe extends a certain dis tance within the casing 13, as shown, to form a sediment and water chamber 24 between this pipe and the casing. The height of this pipe, within the casing from the cap 14, is preferably such that the volume of' the sediment and waterY chamber is slightly greater than the capacity of the casing 13, when lying in a horizontal position, between its lower longitudinal edge and the adjacent edge of the pipe 21 so that, no matter inwhat position the filter may be placed, the water and sediment in the chamber 24 cannot pass out through the pipe 21` Within the casing 13, between it and the pipe 21, I place a filter element 25 which is preferably made of a tubular piece of fine 'wire metal screen secured at one end over a flange 26 on a collar 27 having a central opening threaded to fit on the outer sur- The outer surface of face is formed with a similar rib 29. flat ring-shaped gasket 30, preferably of ysoft metal such as lead, is placed between these elements over the ribs 28 and 29 when assembling, making a tight joint between the cap 14 and the collar 27. As will be seen from an inspection of the drawing, the filter 25 isspaced from both the casing 13 and the pipe 21 so that the entire surface of this filter will allow passage of the s fluid being filtered. The free end of this filter element is preferably closed by means of' an imperforate' metal cap 31 in alinement with'the inlet from the hose 10, and

the casing, but also prevents any deposit which might be left on this end of the filin the chamber 2li, may be removed through a drain comprising a nipple 32 secured in the side of the casing 13, closed its outer end by threaded cap 33 having a noncorrolsivegasket 84 betweenthe cap and the end ofthe nipple to present a tight joint.

The lower ,or discharge yend of the pipe 2l is provided vfith means for closing .the same, when not in use, to prevent entrance of dust and dirt through the pipe which would,

Aon the next filling operation, be deposited in the gasoline tank. inserted in the en d of vthe l pipe is a sleeve 35 having a tight fit with the interior of the pipe, and ,having secured on `the inner side there- 0f at opposite ends the spiders provided with central openings in which is slidably mounted a rod S7, having secured at theouter end thereof a disc forming a valve The inner end of the rod 37 is threaded and .a suitable unit 39 is mounted thereon. Surrounding` the rod between the unit 39 and inner spider 36 is very light spring 4() tending to hold the valve l38 seated against `the end of sleeve 35. The pressure of the spring is adjusted byfmeansof a nut 39 so ,that it just holds vthe `,disc or valve 38 on its seat to closer .theend of the pipe and prevent entrance of dust and dirt when itis vnot in use, but still 'to offer vpractically no resistance to flow .of

liquid through the pipe. rEhe disc or valve S8 is provided with an opening Vto allow all the liquid in the pipe to be drained therefrom.

l Although l have shown and described `my vinventionas applied to a filling hose vfor servicestations it, obviously, Vis not confined to use therewith but may be `used anywhere devices of this typeare desired. It will further be apparent that ll have devised an all-- metal `filter which will he effective in `operaftion,'which is simple in constructionand not liable `to get/out'of order, and which maybe easily cleaned.

Having thus set forth the nature of my invention, what l claim is:

l. A filter comprising a casing, an inlet at one end thereof, an outlet pipe at the other end an d extending into rthe casing and spaced therefrom to provide a sediment chamber, a screen surrounding said pipe and spaced from ,it and the casing, and an impcrforate cap carried by the screen in alignment with the inlet.

A filter comprising a casing, an inlet at one end thereof, an outlet pipe at the other end, a filter-screen in trie casing :between the inlet and outlet, and an imperforate capcarried by said screen in alignment with the ,inlet.

3. i filter-.comprising a tubular casing, an inlet at one end, a vcap secured t0 the other fend, an outlet pipe extending throughsaid cap and projecting into the casing to lsform a sediment chamber-and communicating therewith only arent `its inner endand.a tubular screen in the chamber between the inlet and said pipe and surrounding and spaced from the latter.

fi, r comprising a tubularcasing, yan inlet at one end, a cap secured to Vtheother ond, an outlet pipe provided with an opening adjacent its inner end, said pipe extending through said cap and projecting into the casing and spaced therefrom to form a sediment chamber, `a tubular si in Athe chamber between the inlet d said pipeea-:tending longitudinally of ythe casing, andan imperforate Acap carried by the end of said ,screen adjacent said inlet.

5. ii filter comprising atubular casingan inlet at one end, a cap for closing vthe other end of the casing having an opening therethrough, anexteriorly threaded pipe extending through 'said opening and provided lwith a shoulder contacting with the cap t0 limit the inward movement of the pipe, a lcollar threaded on said pipewithin the-casing, and reacting with the cap to secure the. .pipe therein, and a `tubular Afilter element secured to said collar and surrounding-thegpipe.

in testimony whereof =I affix :my signature. i,

MARTIN E. E. DARDANI. 

